Feeding mechanism for ice-shaving machines.



H. SMITH.

FEEDING MBCHANISM FOR 10E SHAVING MACHINES.

APPLICATION FILED JULY 24, 1911.

Patented Dec.31,1912.

Attorneys HARRY SMITH, OF NORFOLK, VIRGINIA.

FEEDING MECHANISM FOR ICE-SI'IAVING MACHINES.

Specicaton of Letters Patent.

Patented Dec. 31,1912.

Application filed July 24, 1911. Serial No. 640,272.

To all 'whom t may concern.'

Be it known that I, Hanny SMITH, a citi- Zen of the United States,residing at Norfolk, in the county of Norfolk and State of Virginia,have invented a new and useful Feeding Mechanism for lee-ShavingMachines, of which the following is a specification.

The present invention relates to improvements in a feeding mechanism forice shaving machines, the primary object. of the invention being theprovision of a novelI forni of mechanical movement, whereby the iceretaining disk is properly rotated and fed to exert the desired pressureupon the ice during the shaving thereof and whereby the said disk afterhaving reached its lowernlost position willbe readily released from theoperating mechanism so as to be lifted or have imparted thereto, asliding movement so that the disk may be lifted away from the cuttingknives and a block of ice inserted therebetween.

With the foregoing and other objects in View which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood th-at changes in the preciseembodiment of the invent-ion herein disclosed can be made within thescope of what is claimed without depart-ing fro-m the spirit of theinvention.

In the drawings z-Figure 1 is a side elevation of the machine inoperable positioii. Fig. 2 is a vertical section taken o n line 2 2 ofFig. 1. Fig. 3 is a top plan view of the machine. Figs. 1 and 5 aredetail views of various elements of the machine on an enlarged scale.

Referring to the drawings, the numeral. 1 designates the supportingplate having an integral arm or bracket 2, whereby the cylindrical icereceptacle or hopper 3 may be properly attached for operation. In thewall of the receptacle is provided an ice inserting opening 1, which isclosed by the door or closure 5, the eyed lugs G and 7 of the receptacleand the pin 8, forming a hinged connection between the door andreceptacle, while the slotted lug 9, at the other side of the door 5, isadapted to register with the clamping screw 10, pivoted to the lug 11 ofthe receptacle to clamp the door in closed position.

The bottom 12 of the ice receptacle is provided with a slot or aperture13, which acts as a shaved ice discharge for the receptacle, andalthough only one is here illustrated, it is understood that any uumbermay be employed, and may be arranged diametrically, or radially, asdesired. At the far side of the outlet is a shouldered rib 14 whose faceinclines and has removably attached thereto the shaving blade 15, whosecutting edge 1G is disposed to project within the receptacle slightlyabove the bottom thereof into ice engaging position. so that as theblock of ice is rotated, as will presently appear, the blade 15 willshave ine same and conduct the shavings through the outlet.

Formed integral. with the top 3 of the icc hopper or receptacle is anarm or lug 17, carrying the journal box 18, for the reception of thehorizontal spindle or operating shaft 18, which carries upon its outerend the balance wheel 20 and the operating crank handle 21. If sodesired, a fast and a loose pulley may be mounted upon the sha ft 19, sothat the machine may be operated by power'.

Upon the inner end of the Shaft 19, is keyed the small pinion 22, whichmeshes with the large bevel pinion 23, which is rotatably mounted uponthe vertically disposed main spindle or shaft 24, the bevel pinion andshaft being provided with cooperating key and key-way 25, by means ofwhich the rotation of the bevel pinion 2S will impart to the spindle orshaft 2-1 a rotary movement, so that the circular disk or follower 26,carried upon the lower cud of the spindle of shaft 21 within thereceptacle 3, and havingthe ice engaging prongs or teeth 27 upon itsunderface will impart to the block of ice therebelow a rotary ac tion,so that the lower surface thereof in engagement with the blade 15 willbe shaved.

The spindle or shaft 24 is provided with the screw threads 28intermediate of its ends, and at its upper end with the loop or eye 29,by means of which the spindle and follower may be manually raised,instead of necessitating the reversalof the rotation of the shaft 19 tolift the follower. To accomplish this, and also to cause the spindle24|: to be fed or moved downwardly and carry the follower therewith tocompensate for thc shavingl taken from the ice, and to thereby at alltimes hold the block of ice in proper frictional contact with theblade15,

a split interiorly threaded boss 30 is mounted above the bevel gear 23,and normally has its threads in mesh with the threads 28 of the spindle24, the rotation o-f the said spindle, causing the threads 28 to turnwithin the stationary boss 30, so that the spindle 2li and follower aremoved downwardly gradually during the shaving operation. As above statedthis boss is split and formed into sections a and '6, each one of whichis provided with a pin 3l, slidably mo-unted in its respective cam slot32, formed in the frame or cap 33, having the handle 34 and fittingloosely about the spindle 24, whereby the manipulation of said handlewill actuate the pins to cause the said sections a and I) to separate todisengage the threads 28 of the spindle 24, to permit the operator togrip the loop 29 and lift the spindle 24 and the follower to allow theice to be inserted into the hopper through the opening t. As shown inFigs. l and 5, the lower rim c of the cap is turned in to iit in thecircumferential recess or groove Z formed in the sections a and Z), sothat the said cap is held by and relatively holds said sections inoperable position. In order to adjust the locking device a set screw 35is employed. The combined casing and frame 37 supports the split lockingdevice or boss 30, and protects the working parts, being carried by thetop of the receptacle.

F rom the foregoing description taken in connection with the drawings,it is evident that a machine which retains the block of ice resting uponthe cutter or shaver is provided, and that by reason of the peculiarconstruction of operating mechanism the follower is actuated to rotatethe ice during the shaving thereof, and at the same time be given adownward movement to valways retain the block of ice at the desiredpressure upon the shaving blade, a locking device being provided topermit the follower to be slid to its upmost position and held there bylsaid device while the receptacle is being relled with ice.

Vhat is claimed, is:-

l. In a mechanism of this character, a support, a vertically disposedrotatable eX- teriorly threaded spindle mounted in the support andprovided with a longitudinal groove throughout the length of thethreaded portion thereof, a rotatable gear provided with a smooth boremounted upon the spindle and having a key entering the groove thereof toimpart rotation to the spindle, means for rotating the gear, a sectionaldisk surrounding the stem above the gear and provided with threadedportions to coact with the threads of the spindle to impart to thespindle a downward motion during the rotation thereof, said disk beingprovided with a circumferential groove, a cap surrounding said disk andhaving an inturned rim mounted in the groove of the disk, means foroscillating said cap, and c0- acting means carried by the sections ofthe disk and the cap for imparting to said sections movements into andout of engagement with the threaded portion of the spindle when said capis oscillated.

2. In a mechanism of this character, a support and a vertically disposedrotatable eXteriorly threaded spindle slidable in the support andprovided with a longitudinal groove throughout the length of thethreaded portion thereof, a rotatable gear provided with a smooth boremounted upon the spindle above the support and having a key enteringt-he groove thereof to impart rotation to the spindle, a casing carriedby the support and covering the gear, means for rotating the gear, asectional disk surrounding the stem and carried by the casing above thegear, said sectional disk being provided with threaded portions to coactwith the threads of the spindle to impart to the spindle a downwardmotion during the rotation of the spindle, said disk being provided witha circumferential groove, a cap of greater diameter than the disksurrounding said disk and having an inturned rim mounted in the grooveof the disk, means for oscillating said cap, said cap being providedwith two cam slots through the top thereof, and a pin connectedto eachsection of the disk and passing through its respective slot of the capwhereby when the cap is oscillated the sections are moved to and fromthe spindle within the cap.

3. yIn a mechanism of this character, a support, a horizontal bearingcarried by the support, a power shaft journaled therein, a casingcarried by the support and about the inner end of the shaft, a verticalshaft projecting through said casing and support, said shaft beingeXteriorly threaded and having a key way longitudinally thereof, a gearmounted in the casing above the sup'- port and about theV verticalshaft, said gear having a key to fit in the key way of the verticalshaft, said gear being operably connected to the horizontal shaft, apair of separable thread engaging members carried by the casing andabout the shaft, and means for moving said sections into and out ofengagement with the threads of the shaft.

In testimony that I claim the foregoing as my own, I have hereto aflixedmy signature in the presence of two witnesses.

HARRY SMITH.

Witnesses:

FRANK B. OCHSENREITER, M. E. GEIER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

